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A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
| Reporter | Title | Published | Views | Family All 217 |
|---|---|---|---|---|
 | Amazon Linux 2 : grub2 (ALAS-2021-1684) | 16 Jul 202100:00 | – | nessus |
| Alibaba Cloud Linux 3 : 0026: grub2 (ALINUX3-SA-2021:0026) | 14 May 202500:00 | – | nessus |
| Alibaba Cloud Linux 3 : 0048: fwupd (ALINUX3-SA-2021:0048) | 14 May 202500:00 | – | nessus |
| AlmaLinux 8 : grub2 (ALSA-2021:0696) | 9 Feb 202200:00 | – | nessus |
| AlmaLinux 8 : shim (ALSA-2021:1734) | 9 Feb 202200:00 | – | nessus |
| AlmaLinux 8 : fwupd (ALSA-2021:2566) | 9 Feb 202200:00 | – | nessus |
| CentOS 8 : grub2 (CESA-2021:0696) | 3 Mar 202100:00 | – | nessus |
| CentOS 8 : fwupd (CESA-2021:2566) | 3 Jul 202100:00 | – | nessus |
| CentOS 9 : shim-unsigned-x64-15.6-1.el9 | 29 Feb 202400:00 | – | nessus |
| CentOS 7 : grub2 (RHSA-2021:0699) | 9 Oct 202400:00 | – | nessus |
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16 Dec 2021 08:00Current
8.2High risk
Vulners AI Score8.2
CVSS 26.9
CVSS 3.17.5
EPSS0.0039